Features: Double-sided design for versatility in various applications Super powerful neodymium magnet for heavy-duty use Can be used as a cup holder for convenience in everyday use Essential tool for salvage fishing enthusiasts Double holes for vertical or horizontal use Made of neodymium magnets for strong and durable performance Can be used for wind generators, DIY projects, and science projects Axially magnetized with poles on flat ends Maximum operating temperature of 80C/176F Triple layer nickel copper nickel plating for durability Hard to separate once attracted to each other Caution for handling strong magnets Pull force tested at 20C on a polished iron plate with a thickness of 20mm Can hold fishing gear, cellphones, keys, and other small items Designed for salvage fishing from stell cup holders